<template>
    <div>
        <!--        面包屑导航区-->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

<!--        卡片视图区域-->
        <el-card>
<!--            头部输入框和按钮区域-->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" @change="getGoodsList" clearable>
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddPage">添加商品</el-button>
                </el-col>
            </el-row>


<!--            table表格区域-->
            <el-table :data="goodsList" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
                <el-table-column label="创建时间" prop="add_time" width="140px">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat }}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="130px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>


<!--            分页区域-->
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="queryInfo.pagenum"
                    :page-sizes="[1, 2, 5, 10]"
                    :page-size="queryInfo.pagesize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total"
                    background >
            </el-pagination>

        </el-card>
    </div>
</template>

<script>
    export default {
        data() {
            return {
                // 查询参数对象
                queryInfo : {
                    query: '',
                    pagenum : 1,
                    pagesize : 10
                },
                // 商品列表
                goodsList: [],
                // 总记录数
                total: 0,

            }
        },
        created() {
            this.getGoodsList()
        },
        methods: {
            // 根据分页获取对应的商品列表
            async getGoodsList() {
                const {data : res} = await this.$http.get(`goods`,{
                    params: this.queryInfo
                })
                if(res.meta.status !== 200 ) return this.$message.error("获取商品列表数据失败")

                this.goodsList = res.data.goods

                this.total = res.data.total
            },
            // 监听分页大小的变化
            handleSizeChange(newPageSize) {
                this.queryInfo.pagesize = newPageSize
                this.getGoodsList()
            },
            // 监听当前页的变化
            handleCurrentChange(currentPage) {
                this.queryInfo.pagenum = currentPage
                this.getGoodsList()
            },
            // 根据id删除商品
            removeById(id) {
                this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(async () => {
                    const {data: res} =  await this.$http.delete(`goods/${id}`)
                    if(res.meta.status !== 200) return  this.$message.error("删除失败!")
                    this.getGoodsList()
                    this.$message.success("删除成功")
                }).catch(() => {
                    this.$message.info("已取消删除");
                });
            },
            //  跳转到添加商品页面
            goAddPage() {
                this.$router.push('/goods/add')
            }
        }
    }
</script>

<style lang="less" scoped>

</style>
